The Siemens 3VA1340-4EF32-0KB0 is a 3-pole IEC frame 400 molded case circuit breaker rated at 400 A continuous with a 36 kA interrupting capacity at 415 V AC (breaking capacity class S). The TM240 thermal-magnetic trip unit gives adjustable overload protection from 280 A to 400 A and short-circuit pickup adjustable from 5 to 10 times In. A factory-fitted shunt trip on the left side operates on 208–277 V AC 50/60 Hz or 220–250 V DC, and two auxiliary switches are integrated for status feedback to the PLC or panel indication.
Siemens 3VA1340-4EF32-0KB0 MCCB, 400A, 36kA @ 415V
MPN3VA1340-4EF32-0KB0
Siemens 3VA1 IEC frame 400 MCCB, breaking capacity class S, Icu=36kA @ 415V, 3-pole, line protection TM240, In=400A, overload Ir=280-400A, short-circuit Ii=5-10xIn, with shunt trip left 208-277VAC/220-250VDC and 2 auxiliary switches.
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Independent China distributor & sourcing agent· Listing updated Sep 2026
Product details
Frequently asked questions
What are the key ratings of 3VA1340-4EF32-0KB0?
It is a 3-pole IEC frame 400 MCCB rated 400 A continuous, with a 36 kA interrupting capacity at 415 V AC. The TM240 trip offers adjustable overload protection Ir=280–400 A and short-circuit pickup Ii=5–10×In. It includes a shunt trip (left side, 208–277 V AC / 220–250 V DC) and two auxiliary switches.
Where can I buy 3VA1340-4EF32-0KB0?
This MCCB is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
MPN
3VA1340-4EF32-0KB0